CN107509147A - A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve - Google Patents

A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve Download PDF

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Publication number
CN107509147A
CN107509147A CN201710857148.0A CN201710857148A CN107509147A CN 107509147 A CN107509147 A CN 107509147A CN 201710857148 A CN201710857148 A CN 201710857148A CN 107509147 A CN107509147 A CN 107509147A
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CN
China
Prior art keywords
ring body
voice coil
conducting sleeve
circuited conducting
loudspeaker
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Granted
Application number
CN201710857148.0A
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Chinese (zh)
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CN107509147B (en
Inventor
陈志�
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Huizhou Ultrasonic Audio Co Ltd
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Huizhou Ultrasonic Audio Co Ltd
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Priority to CN201710857148.0A priority Critical patent/CN107509147B/en
Publication of CN107509147A publication Critical patent/CN107509147A/en
Priority to US16/138,000 priority patent/US10524056B2/en
Priority to DE102018123313.2A priority patent/DE102018123313A1/en
Priority to GB1815376.7A priority patent/GB2566827B/en
Application granted granted Critical
Publication of CN107509147B publication Critical patent/CN107509147B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/021—Reduction of eddy currents in the magnetic circuit of electrodynamic loudspeaker transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/043—Short circuited voice coils driven by induction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The invention provides a kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, magnetic circuit system includes T-shaped iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, wherein the U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body again, voice coil loudspeaker voice coil is located in the U-lag that the first ring body is formed with the second ring body, and voice coil loudspeaker voice coil can move up and down in U-lag.Short-circuited conducting sleeve is fabricated to U-shaped structure by the present invention, and by optimizing short-circuited conducting sleeve and the miscellaneous part such as annexation of washer, magnet steel and T iron, harmonic distortion and the non-linear distortion of loudspeaker are effectively reduced, improves the overall acoustical behavior of loudspeaker, improves the tonequality of loudspeaker.

Description

A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve
Technical field
The present invention relates to the technical field of loudspeaker manufacture, more particularly, to a kind of loudspeaker magnetic with U-shaped short-circuited conducting sleeve Road system.
Background technology
Loudspeaker in the course of the work, while external drive electric current driving voice coil loudspeaker voice coil vibrates in magnetic gap, can also cause phase The induced-current of opposite direction, especially in high frequency, the self-induction of voice coil loudspeaker voice coil itself is excessive, and caused induced-current is larger, to loudspeaker Work has an impact, and causes higher frequency response impaired.
The loudspeaker of traditional structure, one short-circuited conducting sleeve is set in washer lower end, around magnet, to slow down the resistance of loudspeaker The anti-rate of climb being worth with frequency.Short-circuited conducting sleeve can offset influence of the voice coil loudspeaker voice coil induced-current to magnetic field in loudspeaker, and attenuating is raised one's voice The impedance of device high band, play a part of reducing harmonic distortion, reduce voice coil loudspeaker voice coil inductance.
In existing structure design, short-circuited conducting sleeve is generally positioned at the inner side of voice coil loudspeaker voice coil, and is linked on T iron or washer；Or Person is arranged at the inner side of magnet steel or U iron while positioned at the outside of voice coil loudspeaker voice coil；Or the combined use of both the above mode.But upper In the short-circuited conducting sleeve application stated, the movement post caloric value of T iron is big, the magnetic field stability being unfavorable in speaker operation engineering, and It is not still fairly obvious for the improvement of harmonic distortion of loudspeaker and non-linear distortion.
Therefore, it is necessary to be improved design to the existing magnetic circuit of loudspeaker, so as to effectively reduce harmonic distortion, carry The overall acoustical behavior of high loudspeaker.And how to be effectively improved harmonic distortion of loudspeaker and non-linear distortion be also this area skill Art personnel need the technical problem solved.
The content of the invention
In order to solve above mentioned problem existing for prior art, the invention provides a kind of loudspeaker with U-shaped short-circuited conducting sleeve Magnetic circuit system, short-circuited conducting sleeve is fabricated to U-shaped structure, and by optimizing short-circuited conducting sleeve and miscellaneous part such as washer, magnet steel and T iron Annexation, harmonic distortion and the non-linear distortion of loudspeaker are effectively reduced, improve the overall acoustical behavior of loudspeaker, improvement is raised The tonequality of sound device.
To achieve the above object, the invention provides following technical scheme：
A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, including T-shaped iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, institute Stating T-shaped iron includes transverse part and is vertically set on the vertical part of the transverse part overcentre, and the magnet steel and washer are located at the upper of transverse part Side, the inner side edge of the washer than magnet steel inner side edge closer to vertical part；Formed between the magnet steel and washer and vertical part between T iron Slot, voice coil loudspeaker voice coil and the U-shaped short-circuited conducting sleeve are located in T iron clearance groove；The U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body, The voice coil loudspeaker voice coil is located in the U-lag that the first ring body is formed with the second ring body, and the voice coil loudspeaker voice coil can move up and down in U-lag；It is described First ring body is socketed on vertical part, and second ring body is socketed on magnet steel or washer.
U-shaped short-circuited conducting sleeve is the short-circuited conducting sleeve that section is U-shaped, can also pass through the side such as glue, welding by being integrally formed Formula connects to form U-shaped structure.U-shaped short-circuited conducting sleeve includes being socketed on the first ring body of T iron vertical part and is socketed on washer or magnet steel Second ring body, the first ring body and the second ring body form U-lag, and voice coil loudspeaker voice coil is arranged in the U-lag of the short-circuited conducting sleeve, keep inside and outside Gap, after electric signal is passed through, voice coil loudspeaker voice coil moves up and down in U-lag.It was discovered by researchers that the U-shaped short-circuited conducting sleeve of the structure can have Effect reduces the inductance of voice coil loudspeaker voice coil, improves the frequency response of loudspeaker, improves the distortion of loudspeaker, ensures the overall acoustics of loudspeaker Energy.
As further describing for technical scheme, the bottom of the U-shaped short-circuited conducting sleeve be located at the transverse part of T-shaped iron with The intersection of vertical part.U-shaped short-circuited conducting sleeve is brought into close contact with T-shaped iron, reduces the influence to magnetic gap space, makes magnetic circuit system stable.
As a kind of perferred technical scheme, first ring body carries out downwards U-shaped bending in end, is socketed on afterwards perpendicular The upper end in portion；Second ring body carries out downwards U-shaped bending in end, is socketed on the upper end of washer afterwards.
As another preferable technical scheme, first ring body carries out downwards U-shaped bending in end, is socketed on afterwards The upper end of vertical part；Second ring body is socketed on the lower end of washer.
As another preferable technical scheme, the vertical part up forms raised, the first ring body set laterally It is connected to the lower end of projection；Second ring body is socketed on the lower end of washer.
In above-mentioned technical proposal, the first ring body and the second ring body using different attachment structures respectively with T iron vertical part, washer It is socketed, can realizes that annexation of the short-circuited conducting sleeve in magnetic circuit system is set well, the harmonic wave for effectively reducing loudspeaker loses True and non-linear distortion, improve the tonequality of loudspeaker.Because the position of short-circuited conducting sleeve is fixed, ensure the magnetic in speaker operation engineering Field stability.
Present invention also offers another technical solution：A kind of magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, including U Shape iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, the U-iron include bottom and the convex portion for extending upwardly from the bottom portion out, institute State magnet steel and washer is located at the top of bottom, the width of the washer is more than the width of magnet steel；The magnet steel and washer and convex portion Between form U iron clearance grooves, voice coil loudspeaker voice coil and the U-shaped short-circuited conducting sleeve is located in U iron clearance grooves；
The U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body, and the voice coil loudspeaker voice coil is located at the U that the first ring body is formed with the second ring body In shape groove, the voice coil loudspeaker voice coil can move up and down in U-lag；First ring body is socketed on magnet steel or washer, second ring Body is socketed on convex portion.
It is similar to the magnetic circuit system of T-shaped iron construction, U-shaped short-circuited conducting sleeve include be socketed on magnet steel or washer the first ring body and The second ring body of U-iron convex portion is socketed on, the first ring body and the second ring body form U-lag, and voice coil loudspeaker voice coil is arranged at the U of the short-circuited conducting sleeve In shape groove, inside and outside gap is kept, after electric signal is passed through, voice coil loudspeaker voice coil moves up and down in U-lag.The magnetic circuit of the U-iron structure In system, U-shaped short-circuited conducting sleeve also can effectively reduce the inductance of voice coil loudspeaker voice coil, improve the frequency response of loudspeaker, improve the distortion of loudspeaker, Ensure the overall acoustical behavior of loudspeaker.
As further describing for technical scheme, the bottom of the U-shaped short-circuited conducting sleeve be located at the bottom of U-iron with The intersection of convex portion.U-shaped short-circuited conducting sleeve is brought into close contact with U-iron, reduces the influence to magnetic gap space, magnetic circuit system is obtained surely It is fixed.
As a kind of perferred technical scheme, first ring body carries out downwards U-shaped bending in end, is socketed on China afterwards The upper end of department；Second ring body carries out downwards U-shaped bending in end, is socketed on the upper end of convex portion afterwards.
As another preferable technical scheme, the convex portion up convexes to form projection, second ring body inward It is socketed on the lower end of projection；First ring body carries out downwards U-shaped bending in end, is socketed on the upper end of washer afterwards.
As another preferable technical scheme, the convex portion up convexes to form projection, second ring body inward It is socketed on the lower end of projection；First ring body is socketed on the lower end of washer.
In the technical scheme of above-mentioned U-iron magnetic circuit system, the first ring body uses different attachment structures from the second ring body It is socketed respectively with U iron convex portion, washer, can realizes that annexation of the short-circuited conducting sleeve in magnetic circuit system is set well, effectively Harmonic distortion and the non-linear distortion of loudspeaker are reduced, improves the tonequality of loudspeaker.
Based on above-mentioned technical scheme, the technique effect that the present invention obtains is：
（1）In the magnetic circuit of loudspeaker provided by the invention with U-shaped short-circuited conducting sleeve, short-circuited conducting sleeve is fabricated to U-shaped structure, and lead to Cross optimization short-circuited conducting sleeve and miscellaneous part such as washer, T iron（U iron）Annexation, effectively reduce loudspeaker harmonic distortion and Non-linear distortion, the overall acoustical behavior of loudspeaker is improved, improve the tonequality of loudspeaker.
（2）The magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of the present invention, U-shaped short-circuited conducting sleeve include the first ring body and second Ring body, using different attachment structures respectively and T iron（U iron）, washer be socketed, make whole magnetic circuit system obtain stabilization, and So that the change of nonlinear inductance amount reduces in magnetic circuit system, so that distortion reduces, and U-shaped short-circuited conducting sleeve can make the electricity of voice coil loudspeaker voice coil Impedance value becomes to ease up with the rising of frequency, so as to improve the frequency response output area of loudspeaker.
Brief description of the drawings
Fig. 1 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 1.
Fig. 2 is the simulated effect figure of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 1.
Fig. 3 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 2.
Fig. 4 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 3.
Fig. 5 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 4.
Fig. 6 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 5.
Fig. 7 is the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 6.
Embodiment
For the ease of understanding the present invention, the present invention is more fully retouched below in conjunction with accompanying drawing and specific embodiment State.The better embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, and It is not limited to embodiments described herein.On the contrary, the purpose for providing these embodiments is made in disclosure of the invention Hold the more thorough and comprehensive understood.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Embodiment 1
Fig. 1 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 1, as shown in figure 1, a kind of tool There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including T-shaped iron 1, magnet steel 2, washer 3, voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, T-shaped Iron 1 includes transverse part 11 and is vertically set on the vertical part 12 of the overcentre of transverse part 11, in being sequentially arranged above for transverse part 11 Magnet steel 2 and washer 3, i.e. magnet steel 2 and washer 3 are sequentially located at the top of transverse part 11.It should be noted that the inner side edge ratio of washer 3 The inner side edge of magnet steel 2 is closer to vertical part 12.Space between magnet steel 2 and washer 3 and vertical part 12, then T iron clearance groove 13 is formed, Voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5 are located in T iron clearance groove 13.
Wherein, the bottom of U-shaped short-circuited conducting sleeve 5 is located at the transverse part 11 of T-shaped iron 1 and the intersection of vertical part 12.U-shaped short-circuited conducting sleeve 5 and T Shape iron 1 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, the first ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part 12 afterwards； Second ring body 52 carries out downwards U-shaped bending in end, is socketed on the upper end of washer 3 afterwards.
Fig. 2 is the simulated effect figure of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of the present embodiment, as shown in Fig. 2 should It is than short-circuited conducting sleeve traditionally and well many without the simulated effect of addition short-circuited conducting sleeve with the U-shaped short-circuited conducting sleeve of the present embodiment.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body Structure, and the first ring body and the second ring body are socketed with vertical part and washer respectively, whole magnetic circuit system can be made to obtain stabilization, and make The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 2
Fig. 3 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 2, as shown in figure 3, a kind of tool There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including T-shaped iron 1, magnet steel 2, washer 3, voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, T-shaped Iron 1 includes transverse part 11 and is vertically set on the vertical part 12 of the overcentre of transverse part 11, in being sequentially arranged above for transverse part 11 Magnet steel 2 and washer 3, i.e. magnet steel 2 and washer 3 are sequentially located at the top of transverse part 11.It should be noted that the inner side edge ratio of washer 3 The inner side edge of magnet steel 2 is closer to vertical part 12.Space between magnet steel 2 and washer 3 and vertical part 12, then T iron clearance groove 13 is formed, Voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5 are located in T iron clearance groove 13.
Wherein, the bottom of U-shaped short-circuited conducting sleeve 5 is located at the transverse part 11 of T-shaped iron 1 and the intersection of vertical part 12.U-shaped short-circuited conducting sleeve 5 and T Shape iron 1 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, the first ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part 12 afterwards； Second ring body 52 is socketed on the lower end of washer 3.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body Structure, and the first ring body and the second ring body are socketed with vertical part and washer respectively, whole magnetic circuit system can be made to obtain stabilization, and make The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 3
Fig. 4 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 3, as shown in figure 3, a kind of tool There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including T-shaped iron 1, magnet steel 2, washer 3, voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, T-shaped Iron 1 includes transverse part 11 and is vertically set on the vertical part 12 of the overcentre of transverse part 11, in being sequentially arranged above for transverse part 11 Magnet steel 2 and washer 3, i.e. magnet steel 2 and washer 3 are sequentially located at the top of transverse part 11.It should be noted that the inner side edge ratio of washer 3 The inner side edge of magnet steel 2 is closer to vertical part 12.Space between magnet steel 2 and washer 3 and vertical part 12, then T iron clearance groove 13 is formed, Voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5 are located in T iron clearance groove 13.
Wherein, the bottom of U-shaped short-circuited conducting sleeve 5 is located at the transverse part 11 of T-shaped iron 1 and the intersection of vertical part 12.U-shaped short-circuited conducting sleeve 5 and T Shape iron 1 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, vertical part 12 up forms projection 14 laterally, and the first ring body 51 is socketed under projection 14 End；Second ring body 52 is socketed on the lower end of washer 3.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body Structure, and the first ring body and the second ring body are socketed with vertical part and washer respectively, whole magnetic circuit system can be made to obtain stabilization, and make The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 4
Fig. 5 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 4, as shown in figure 4, a kind of tool There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including U-iron 6, magnet steel 2 ', washer 3 ', voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, U Shape iron 6 includes bottom 61 and the convex portion 62 for upwardly extending out from bottom 61, and magnet steel 2 ' has been sequentially arranged above in bottom 61 With washer 3 ', i.e. magnet steel 2 ' and washer 3 ' is sequentially located at the top of bottom 61.It should be noted that the width of washer 3 ' is more than magnetic The width of steel 2 ', the space between magnet steel 2 ' and washer 3 ' and convex portion 62, then form U iron clearance groove 63, voice coil loudspeaker voice coil 4 and U-shaped Short-circuited conducting sleeve 5 is located in U iron clearance groove 63.
Wherein the bottom of U-shaped short-circuited conducting sleeve 5 is located at the bottom 61 of U-iron 6 and the intersection of convex portion 62, U-shaped short-circuited conducting sleeve 5 and U Shape iron 6 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, the first ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of washer 3 ' afterwards； Second ring body 52 carries out downwards U-shaped bending in end, is socketed on the upper end of convex portion 62 afterwards.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body Structure, and the first ring body and the second ring body are socketed with washer and convex portion respectively, whole magnetic circuit system can be made to obtain stabilization, and make The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 5
Fig. 6 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 5, as shown in figure 5, a kind of tool There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including U-iron 6, magnet steel 2 ', washer 3 ', voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, U Shape iron 6 includes bottom 61 and the convex portion 62 for upwardly extending out from bottom 61, and magnet steel 2 ' has been sequentially arranged above in bottom 61 With washer 3 ', i.e. magnet steel 2 ' and washer 3 ' is sequentially located at the top of bottom 61.It should be noted that the width of washer 3 ' is more than magnetic The width of steel 2 ', the space between magnet steel 2 ' and washer 3 ' and convex portion 62, then form U iron clearance groove 63, voice coil loudspeaker voice coil 4 and U-shaped Short-circuited conducting sleeve 5 is located in U iron clearance groove 63.
Wherein the bottom of U-shaped short-circuited conducting sleeve 5 is located at the bottom 61 of U-iron 6 and the intersection of convex portion 62, U-shaped short-circuited conducting sleeve 5 and U Shape iron 6 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, convex portion 62 up convexes to form projection 64 inward, and the second ring body 52 is socketed on projection 64 Lower end；First ring body 51 carries out downwards U-shaped bending in end, is socketed on the upper end of washer 3 ' afterwards.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body Structure, and the first ring body and the second ring body are socketed with washer and convex portion respectively, whole magnetic circuit system can be made to obtain stabilization, and make The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
Embodiment 6
Fig. 7 gives the profile of the magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve of embodiment 6, as shown in fig. 6, a kind of tool There are the magnetic circuit of loudspeaker of U-shaped short-circuited conducting sleeve, including U-iron 6, magnet steel 2 ', washer 3 ', voice coil loudspeaker voice coil 4 and U-shaped short-circuited conducting sleeve 5.Wherein, U Shape iron 6 includes bottom 61 and the convex portion 62 for upwardly extending out from bottom 61, and magnet steel 2 ' has been sequentially arranged above in bottom 61 With washer 3 ', i.e. magnet steel 2 ' and washer 3 ' is sequentially located at the top of bottom 61.It should be noted that the width of washer 3 ' is more than magnetic The width of steel 2 ', the space between magnet steel 2 ' and washer 3 ' and convex portion 62, then form U iron clearance groove 63, voice coil loudspeaker voice coil 4 and U-shaped Short-circuited conducting sleeve 5 is located in U iron clearance groove 63.
Wherein the bottom of U-shaped short-circuited conducting sleeve 5 is located at the bottom 61 of U-iron 6 and the intersection of convex portion 62, U-shaped short-circuited conducting sleeve 5 and U Shape iron 6 is brought into close contact, and can reduce the influence to magnetic gap space, makes magnetic circuit system stable.
Further, U-shaped short-circuited conducting sleeve 5 includes the first ring body 51 and the second ring body 52, and voice coil loudspeaker voice coil 4 is located at the first ring body 51 and In the U-lag 53 that two ring bodies 52 are formed, voice coil loudspeaker voice coil 4 can move up and down in U-lag 53.
In the present embodiment, convex portion 62 up convexes to form projection 64 inward, and the second ring body 52 is socketed on projection 64 Lower end；First ring body 51 is socketed on the lower end of washer 3 '.
In the magnetic circuit of loudspeaker of the present embodiment, short-circuited conducting sleeve is fabricated to the U-shaped containing the first ring body and the second ring body Structure, and the first ring body and the second ring body are socketed with washer and convex portion respectively, whole magnetic circuit system can be made to obtain stabilization, and make The change for obtaining nonlinear inductance amount in magnetic circuit system reduces, and effectively reduces harmonic distortion and the non-linear distortion of loudspeaker, and U Shape short-circuited conducting sleeve can make the impedance value of voice coil loudspeaker voice coil become to ease up with the rising of frequency, so as to improve the frequency response of loudspeaker output model Enclose, improve the overall acoustical behavior of loudspeaker, improve the tonequality of loudspeaker.
The structure example and explanation of the above content only present invention, its description is more specific and detailed, but simultaneously Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these obviously replace shape Formula belongs to protection scope of the present invention.

Claims (10)

  1. A kind of 1. magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, it is characterised in that including T-shaped iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, the T-shaped iron include transverse part and are vertically set on the vertical part of the transverse part overcentre, the magnet steel and washer Positioned at the top of transverse part, the inner side edge of the washer than magnet steel inner side edge closer to vertical part；The magnet steel and washer and vertical part Between form T iron clearance groove, voice coil loudspeaker voice coil and the U-shaped short-circuited conducting sleeve is located in T iron clearance groove；The U-shaped short-circuited conducting sleeve includes the first ring Body and the second ring body, the voice coil loudspeaker voice coil are located in the U-lag that the first ring body is formed with the second ring body, and the voice coil loudspeaker voice coil can be in U-lag Move up and down；First ring body is socketed on vertical part, and second ring body is socketed on magnet steel or washer.
  2. 2. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that the U-shaped short circuit The bottom of ring is located at the transverse part of T-shaped iron and the intersection of vertical part.
  3. 3. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that first ring Body carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part afterwards；Second ring body carries out downwards U-shaped folding in end It is curved, the upper end of washer is socketed on afterwards.
  4. 4. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that first ring Body carries out downwards U-shaped bending in end, is socketed on the upper end of vertical part afterwards；Second ring body is socketed on the lower end of washer.
  5. 5. the magnetic circuit of loudspeaker according to claim 1 with U-shaped short-circuited conducting sleeve, it is characterised in that the vertical part exists Top forms projection laterally, and first ring body is socketed on the lower end of projection；Second ring body is socketed on the lower end of washer.
  6. A kind of 6. magnetic circuit of loudspeaker with U-shaped short-circuited conducting sleeve, it is characterised in that including U-iron, magnet steel, washer, voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve, the U-iron include bottom and the convex portion for extending upwardly from the bottom portion out, and the magnet steel and washer are located at bottom Top, the width of the washer is more than the width of magnet steel；U iron clearance grooves, institute are formed between the magnet steel and washer and convex portion State voice coil loudspeaker voice coil and U-shaped short-circuited conducting sleeve is located in U iron clearance grooves；
    The U-shaped short-circuited conducting sleeve includes the first ring body and the second ring body, and the voice coil loudspeaker voice coil is located at the U that the first ring body is formed with the second ring body In shape groove, the voice coil loudspeaker voice coil can move up and down in U-lag；First ring body is socketed on magnet steel or washer, second ring Body is socketed on convex portion.
  7. 7. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that the U-shaped short circuit The bottom of ring is located at the bottom of U-iron and the intersection of convex portion.
  8. 8. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that first ring Body carries out downwards U-shaped bending in end, is socketed on the upper end of washer afterwards；Second ring body carries out downwards U-shaped folding in end It is curved, the upper end of convex portion is socketed on afterwards.
  9. 9. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that the convex portion exists Top convexes to form projection inward, and second ring body is socketed on the lower end of projection；First ring body carries out downwards U in end Shape bending, the upper end of washer is socketed on afterwards.
  10. 10. the magnetic circuit of loudspeaker according to claim 6 with U-shaped short-circuited conducting sleeve, it is characterised in that the convex portion exists Top convexes to form projection inward, and second ring body is socketed on the lower end of projection；First ring body is socketed under washer End.
CN201710857148.0A 2017-09-21 2017-09-21 Loudspeaker magnetic circuit system with U-shaped short circuit ring Active CN107509147B (en)

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CN201710857148.0A CN107509147B (en) 2017-09-21 2017-09-21 Loudspeaker magnetic circuit system with U-shaped short circuit ring
US16/138,000 US10524056B2 (en) 2017-09-21 2018-09-21 Loudspeaker magnetic circuit system having U-shaped short-circuit ring
DE102018123313.2A DE102018123313A1 (en) 2017-09-21 2018-09-21 Loudspeaker magnetic circuit system with U-shaped short-circuit ring
GB1815376.7A GB2566827B (en) 2017-09-21 2018-09-21 Loudspeaker magnetic circuit system having u-shaped short-circuit ring

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DE102018123313A1 (en) 2019-03-21
GB201815376D0 (en) 2018-11-07
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US10524056B2 (en) 2019-12-31
GB2566827B (en) 2019-12-18
US20190090063A1 (en) 2019-03-21

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